Upgrade Option Not visible in MOPZ for Upgrade from ECC 5 to ECC 6

Dear Experts,

We are upgrading from ECC 5.0 to ECC 6.0 including EHP4 in the Upgrade. IN the EHP_INCLUSION Phase it asks for the Stack.XML File. We have already added this solution to the Solution manager and trying to generate the stack.xml file from there.

Now the problem is that we are not getting the "Upgrade" Option in MOPZ. There is only one option "Maintenance" through which we may only get the stack upgrade xml. Kindly suggest how to enable that option in Maintenance Optimizer. We are having Solution Manager 7 with EHP1 on SPS 23. Already applied notes 1485385 as suggested by MOPZ.

Thanks

Jitendra Tayal